CN109685885A - A kind of fast method using depth map conversion 3D rendering - Google Patents
A kind of fast method using depth map conversion 3D rendering Download PDFInfo
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- CN109685885A CN109685885A CN201710978092.4A CN201710978092A CN109685885A CN 109685885 A CN109685885 A CN 109685885A CN 201710978092 A CN201710978092 A CN 201710978092A CN 109685885 A CN109685885 A CN 109685885A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
Abstract
The present invention relates to 3 D stereo Rendering fields, specifically a kind of fast method using depth map conversion 3D rendering, it renders depth map Z-Depth by d-making software, and the conversion of 2D to 3D is carried out using depth map Z-Depth, obtains two Eye Views in left and right, it is three-dimensional in flakes to form 3D, repetition rendering when d-making software development 3D solid film source is reduced, render time can be saved, reduces rendering cost, fabrication cycle is greatly shortened, improves working efficiency.
Description
Technical field
It is specifically a kind of to utilize the fast of depth map conversion 3D rendering the present invention relates to 3 D stereo Rendering field
Fast method.
Background technique
Existing 2D turns to generally require to repeat when the technology of 3D to render, and render time is long, and rendering is at high cost, substantially prolongs
Fabrication cycle, working efficiency are low.
Summary of the invention
The purpose of the present invention is overcome the deficiencies in the prior art, render depth map Z-Depth by d-making software,
The conversion that 2D to 3D is carried out using depth map Z-Depth obtains two Eye Views in left and right, forms 3D solid in flakes, reduces
Repetition rendering when d-making software development 3D solid film source, can save render time, reduce rendering cost, significantly contract
Short fabrication cycle improves working efficiency.
To achieve the above object, a kind of fast method using depth map conversion 3D rendering is designed, which is characterized in that three
Step is handled as follows in dimension software:
(1), a three-dimensional scene models are created；
(2), light camera is set up in three-dimensional scenic；
(3), in three-dimensional scenic, with tape measure light camera to object distal end distance, to obtain the depth of Z-Depth
Value；
(4), in three-dimensional scenic, measurement obtains distance value Length, and Z-Depth is arranged by distance value；
(5), maximum value Z-Depth is arranged in Z-Depth numerical valuemaxWith minimum value Z-Depthmin, it is rendered to figure, is finally obtained
Depth map；
(6), video sequence frame is imported, by being a horizontal position to be found, with true referring to Orient Scene with scene
Video camera is determined to the camera perspective view of video；
(7), depth map Z-Depth is imported；
(8), using the channel Z add stereoscopic camera stereo Render, to that sequence frame currently adjusted carry out to
Preceding and tracking resolving backward, obtains the hum pattern of the Z-direction of entire sequence frame；The depth of field is whiter, corresponding feature on the image
Point is closer from picture plane, i.e. g (x)=n/ λ, wherein g (x) is depth of field degree, and n is proportionality constant, and λ is black and white depth of field degree；
(9), by stereo camera Stereo Render migration processing, three-dimensional two spacing are manually adjusted
The specific location of Interocular and zero plane Convergence, finally by Z channel filter Z-Depth Filter
Blur filter is carried out, obtains the smooth solution nomogram with the channel Z, is rendered by solid, the sequence frame of output 3D format is carried out.
The three-dimensional software includes 3ds Max.
It repeats to render the technical advantages of the present invention are that reducing, greatly shortens render time, reduce rendering cost, substantially
Degree reduces fabrication cycle, improves working efficiency.
Detailed description of the invention
Fig. 1 is the depth of field and characteristic point distance relation in the present invention.
Specific embodiment
The present invention is further described now in conjunction with accompanying drawings and embodiments.
Embodiment 1
Referring to Fig. 1, it is a kind of using depth map conversion 3D rendering fast method, which is characterized in that in three-dimensional software into
The following processing step of row:
(1), a three-dimensional scene models are created；
(2), light camera is set up in three-dimensional scenic；
(3), in three-dimensional scenic, with tape measure light camera to object distal end distance, to obtain the depth of Z-Depth
Value；
(4), in three-dimensional scenic, measurement obtains distance value Length, and Z-Depth is arranged by distance value；
(5), maximum value Z-Depth is arranged in Z-Depth numerical valuemaxWith minimum value Z-Depthmin, it is rendered to figure, is finally obtained
Depth map；
(6), video sequence frame is imported, by being a horizontal position to be found, with true referring to Orient Scene with scene
Video camera is determined to the camera perspective view of video；
(7), depth map Z-Depth is imported；
(8), using the channel Z add stereoscopic camera stereo Render, to that sequence frame currently adjusted carry out to
Preceding and tracking resolving backward, obtains the hum pattern of the Z-direction of entire sequence frame；The depth of field is whiter, corresponding feature on the image
Point is closer from picture plane, i.e. g (x)=n/ λ, wherein g (x) is depth of field degree, and n is proportionality constant, and λ is black and white depth of field degree, ginseng
See Fig. 1, wherein h is the depth of field；
(9), by stereo camera Stereo Render migration processing, three-dimensional two spacing are manually adjusted
The specific location of Interocular and zero plane Convergence, finally by Z channel filter Z-Depth Filter
Blur filter is carried out, obtains the smooth solution nomogram with the channel Z, is rendered by solid, the sequence frame of output 3D format is carried out.
Further, the three-dimensional software includes 3ds Max.
By above-mentioned processing step, we obtain stereo-picture quickly, and have carried out three-dimensional test, and test result is as follows:
It is T1=60 minutes that the one camera single picture time is rendered in entire step；
Rendering the two picture time of stereoscopic camera is T2=TI*2=60m*2=120 minutes；
Entire shot sequence is 100 frames, renders one camera sequence frame time as T3=T1*100=60m*100=6000 points
Clock；
Rendering stereoscopic camera sequence frame time is T4=T2*100=120m*100=12000 minutes；
It is T5=60 minutes using the Z-Depth production rendering three-dimensional sequences time；
Three-dimensional software and Z-Depth production three-dimensional sequences time are T6=T5+T3=6060 minutes；
It can be seen that three-dimensional software by the above numerical value and make three-dimensional rendering solid more direct than three-dimensional software with Z-Depth
It is saved on time many times, T7=T4-T6=12000m-6060m=5940 minutes, it can be seen that three-dimensional software and use Z-
Depth almost saves for 49.5% time.Repetition rendering when reducing d-making software development 3D solid film source, can be with
Render time is saved, rendering cost is reduced, fabrication cycle is greatly shortened, improve working efficiency.
General stereoscopic render mode is rendered respectively to right and left eyes.Equipped with n sequence frames, total time Tn ', left eye is
T1, right eye are k1 ∈ (0,0.01) with respect to the error amount of left eye；
Then rendering single frames three-dimensional total time is T1 '+(T1 '+k1T1 '), renders total time Tn '=nT1 ' (2 of entire sequence
+k1)；
Render mode using depth map conversion stereo-picture is only to render simple eye sequence, and additional increase imports Depth
Time.Equipped with n sequence frames, total time is Tn ", and single frames render time is Tcenter, and additional increase imports Depth
Time be Tdepth, Tdepth is about T1 '；Rendering error amount between single frames left eye or right eye and Tcenter is k2；
The total time for then rendering entire sequence is Tn "=nT1 (1+k2)+Tdepth；If it is Tm that total time is saved in rendering, then
Tm=Tn '-Tn "=nT1 ' (1+k-k2)-T1 '；
Using the render mode of depth map conversion stereo-picture with respect to the time scale that General stereoscopic render mode is saved
For q=Tm/Tn ' * 100%.
Claims (2)
1. a kind of fast method using depth map conversion 3D rendering, which is characterized in that be handled as follows in three-dimensional software
Step:
(1), a three-dimensional scene models are created；
(2), light camera is set up in three-dimensional scenic；
(3), in three-dimensional scenic, with tape measure light camera to object distal end distance, to obtain the depth value of Z-Depth；
(4), in three-dimensional scenic, measurement obtains distance value Length, and Z-Depth is arranged by distance value；
(5), maximum value Z-Depth is arranged in Z-Depth numerical valuemaxWith minimum value Z-Depthmin, it is rendered to figure, finally obtains depth
Figure；
(6), video sequence frame is imported, by being to find a horizontal position referring to Orient Scene with scene, is taken the photograph with determination
Camera perspective view of the camera to video；
(7), depth map Z-Depth is imported；
(8), add stereoscopic camera stereo Render using the channel Z, to that sequence frame for currently adjusting carry out forward and
Tracking resolves backward, obtains the hum pattern of the Z-direction of entire sequence frame；The depth of field is whiter, on the image corresponding characteristic point from
Picture plane is closer, i.e. g (x)=n/ λ, wherein g (x) is depth of field degree, and n is proportionality constant, and λ is black and white depth of field degree；
(9), by stereo camera Stereo Render migration processing, manually adjust two spacing Interocular of solid with
And the specific location of zero plane Convergence, blur filter is carried out finally by Z channel filter Z-Depth Filter,
It obtains the smooth solution nomogram with the channel Z, is rendered by solid, carry out the sequence frame of output 3D format.
2. a kind of fast method using depth map conversion 3D rendering as described in claim 1, which is characterized in that described three
Tieing up software includes 3ds Max.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US11861775B2 (en) | 2019-10-17 | 2024-01-02 | Huawei Technologies Co., Ltd. | Picture rendering method, apparatus, electronic device, and storage medium |
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| CN101208723A (en) * | 2005-02-23 | 2008-06-25 | 克雷格·萨默斯 | Automatic scene modeling for the 3D camera and 3D video |
| US20130060540A1 (en) * | 2010-02-12 | 2013-03-07 | Eidgenossische Tehnische Hochschule Zurich | Systems and methods that generate height map models for efficient three dimensional reconstruction from depth information |
| CN102333229A (en) * | 2010-06-21 | 2012-01-25 | 壹斯特股份有限公司 | Method and apparatus for converting 2d image into 3d image |
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| US11861775B2 (en) | 2019-10-17 | 2024-01-02 | Huawei Technologies Co., Ltd. | Picture rendering method, apparatus, electronic device, and storage medium |
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